Lever-power eor pressing



N NUNTTED sTaTEs PATENT oEEIcE.

ROBERT SANDERSON, OF ATHENS, OHIO.

LEVER-Bowen ron PREssINc-z.

`Specpication of Letters Patent No. 3,446, datedIEebruary 20, 1844.

To all wltomzt may concern: y

Be it known `that I, ROBERT. SANDERsoN, of Athens, in the county of Athens and State of Ohio, `haveinvented anew and improved lever-power `to be applied to l cheese-presses, cider-presses, for expressing oils, pressing hay,ootton,` paper,.`cloth, and all substances `wheregreat power is required, andV also for raising or lowering great weigh-ts into and" out of canals,"lock-pits, &c.; and I do hereby declare that the following-is a full, clear, and exact ,description` of `the construction and operationof the saine, reference being had tothe accompanying drawing in` perspective, making part of this specification. l i

To enable others skilled in the art to make and use my` invention, `I will proceed to describe its construction and operation. y

. For `a `cider-press I construct a `substantial frame A, A, as represented in the annexed drawing,about eighteen feet long and six feet wide, the uprights B, B, six or` eight feet high; about live or six feet from one end I insert inthe sill and upper plate of the frame, two strong posts C, C, and where great power is required, it may be necessary to attach the braces as seen in the drawing at D, D. Near the top ofthe posts make a hole as seen at E, six or eight inches diameter to receive the trunnionsof the axle or shaft hereafter described. y i

I next constructmy lever of two or more pieces of timber of` a lengt-h nearly equal to the frame,` and spike onthem crosswise plank of al length, so as to let the lever play on the fulcrum freely within the frame, see F. `I then spike down on the topof the lever two iron `or wooden rails Gr, G, the whole length ofthe lever, to rece-ive the wheels ofthe car H. In the sides of the `lever and under the rails let in and fasten by bolts and screws or otherwise the` axle or shaft forming the fulcrum i with the `trunnions passinginto the holes E in the posts C. On` the under side of lever immediately in front ofthe axle, fasten three o-r four pieces of timbercrosswise of the low the platen. In the center of the front end, and on `the top of the frame I insert rmly,the upright M, to receive the pulley N. At the opposite end of the frame insert two uprights O, O, to receive the cylinder P and crank R- The cylinder and pulley may be of greater or less diameter accordin'oF to circumstances of which the workman willbe the bestjudge.

The car will be similar to those used in coal mines, lled with rock or other ponderous material, and increasedor diminished as may be required.

. At Q, in theforward end of the oar I place a hook, and from it extend therope or chain R, over t-he pulley N, and back to the cylinder P, coil around once or twice and fasten it to the cylinder. Fromthe other end of the car I extend a similar rope or chain to the cylinder and coil around it inversely, a suiiicient number `of times to permit the car to reach the extreme end of the lever when the rope is unwound.

To apply my lever, I place the substance to be pressed on the bed K, and block against the platen I. Then by turning the cylinder with the crank, draw the loaded car to the forward end ofthe leverwhich will be pressed down with a force pro-` portionate to the` weight of the car; reverse the motion of the crank and you draw back thecar and the lever will be raised up ready for reblocking.

If you wish to raise or lower any weight, attach a rope to the forward end of the lever, and pass `it over a pulley similar to the one already described, fasten to the weight, run forward t-he car and the work is done.

To apply this lever to the purposes mentioned it is impossible to give the dimension for each, the mechanic will be the best judge of the strength required, and will vary the 

